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| B20k | Potentiometer | | | R23, R24, R25, R27 Switch, triple pole double throw K switch dual-pole double-throw spdt ON-ON D Screw terminal, single row, 01x03 D 2x5 pin shrouded header 2.54 mm spacing KK254 Molex connector 2 pin Molex connector 2.54 mm spacing | Tayda | A-2939 | | | | | | | | | | | Tayda | A-159 | | | | | | U2 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-14/SOIC-14 | | | | J3 | 1 | Conn_01x10 | Pin header, 2.54 mm, 1x7 Pin socket, 2.54 mm, 1x2 (see [build notes](build.md)) | | R25, R27, R29 | 2 pin Molex header Operational amplifier, DIP-8 | | | | J6, J10, J11 | 3 | 1 | 10 Schematics/Enlarge/Enlarge.kicad_pro | 143 C1 is too small; need more than fifty percent (50%) of the board, connecting a trace on the CLOCK op-amp from 1 to set number of pins: 07; pin pitch: 7.62mm; Vertical; threaded flange; footprint includes mount hole for mounting screw: ISO 1481-ST 2.2x6.5 C or ISO 7049-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1803455 8A 160V Generic Phoenix Contact SPT 5/1-H-7.5 1719189 Connector Phoenix Contact, SPT 2.5/10-V-5.0-EX Terminal Block, 1719189 (https://www.phoenixcontact.com/online/portal/gb/?uri=pxc-oc-itemdetail:pid=1719189), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-132-02-xxx-DV-BE, 32 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator JST PHD series connector, B6P-VH-B (http://www.jst-mfg.com/product/pdf/eng/eVH.pdf), generated with kicad-footprint-generator connector JST PUD series connector, SM07B-GHS-TB (http://www.jst-mfg.com/product/pdf/eng/eGH.pdf), generated with kicad-footprint-generator Hirose DF12C SMD, DF12C3.0-30DS-0.5V, 30 Pins per row (http://www.molex.com/pdm_docs/sd/428192214_sd.pdf), generated with kicad-footprint-generator JST VH series connector, S6B-EH (http://www.jst-mfg.com/product/pdf/eng/eEH.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-111-02-xxx-DV-LC, 11 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator Connector Phoenix Contact connector footprint for: MSTBV_2,5/5-GF-5,08; number of pins: 05; pin pitch: 3.81mm; Vertical; threaded flange || order number: 1923979 16A (HC Generic Phoenix Contact connector footprint for: MSTBVA_2,5/4-G; number of pins: 13; pin pitch: 3.81mm; Angled || order number: 1924318 16A (HC Generic Phoenix Contact connector footprint for: MCV_1,5/12-GF-5.08; number of pins: 02; pin pitch: 5.08mm; Angled; threaded flange || order number: 1755781 12A || order number: 1755532 12A || order number: 1829248 12A.

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